Upload your route
Drop in any GPX file - road race, TT course, or gran fondo. OptiSplit reads gradient, distance, and surface automatically.
Optimal Time Trial Pacing
Upload a GPX route, enter your weight, CdA, and target power - OptiSplit returns a per-segment power plan you can fine-tune with your own watts, consolidate segments and set nutrition reminders.
How it works
Drop in any GPX file - road race, TT course, or gran fondo. OptiSplit reads gradient, distance, and surface automatically.
Enter rider mass, CdA, rolling resistance, and your target average power. Everything the physics model needs - nothing it doesn't.
Receive a per-segment power target, adjust individual watts when you know how you want to ride a section, then export it to your head unit.
Override any segment with your own power target and instantly recalculate the ride metrics.
Merge adjacent sections into simpler, easier-to-follow blocks before riding or exporting.
Optionally add drink and food cues at exact kilometers, with short notes for carbs, bottles, or gels.
Pricing
Core pacing stays free. Pro adds the conditions and exports that matter.